<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
	</head>
	<body>
		<div id="app">
			       <p v-if="score>90">优秀</p>
			       <p v-else-if="score>75">良好</p>
			       <p v-else-if="score>=60">及格</p>
			       <p v-else>不及格</p>
			    </div>
		    
		<script>
			var exam = new Vue({
				el: "#app",
				data: {
					score: 55
				}
		 })
		</script>    
	</body>
</html>
